this post was submitted on 08 Apr 2026
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Nintendo 3DS, 2DS and DS

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Access Infrared Sensor using devkitPro? (piefed.social)
submitted 1 week ago by vogi@piefed.social to c/3ds@lemmy.world
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TLDR: Did anybody successfully communicated with the infrared sensor embedded in some DS cartridges using devkitPro?

Hello all,

bought a copy of Walk with Me which comes with a infrared pedometer.

To transfer the data it has a infrared sensor built in the cartridge similar to how the Pokéwalker.

Problem is the games on Personal Trainer: Walking are not that great. At least not compared to what Nintendo did with Street Pass on the Nintendo 3DS. So now im here wanting to do a homebrew version of "Puzzle Swap".

I found these two posts which go over the insides and what is being sent.

Im still unsure where and how to start with reading that on the DS though. Did anybody even managed to access the infrared sensor?

PS: I am aware that posting it on here has slim chances of getting any help. I just really like lemmy and people on here so I thought ill try my luck on here as well :)

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[–] vogi@piefed.social 2 points 1 week ago (1 children)

I know right! There a lot more examples like that I think they also made a web browser with a whole wifi receiver as well as extras RAM on the cartridge.

It kinda makes me want to create a list on wikipedia with all those extra chips on cartridges, it’s really cool.

[–] fartographer@lemmy.world 1 points 1 week ago

Gameboy camera was the shit!